Dear Guix, I changed the calibre recipe to accomodate for the changes for 3.0.0. In the process I replaced one of the patches that removed the external links to favicons with a substitution. (The patch wouldn't apply anymore). So, the following patch updates calibre to 3.0.0. I tested that it works and that I can copy books to my e-reader. .. And of course that works fine. Kind regards, Roel Janssen